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RIA / WealthAdvisordual registered (broker-dealer)19 years in industry

MARK WILLIAM KARSTROM

Advisor at FOURSTAR WEALTH ADVISORS, LLC

FLOSSMOOR, IL | CHICAGO, IL

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Search this name across graphsid dfx:ria:77d1de75-30a9-a1a7-4d55-ed27d7266254

Data as of Sep 15, 2026 (this record's last observation) from federal regulator filings. Page built Sep 21, 2026, 9:11 AM UTC and rebuilt at most every 15 minutes.

Relationships: 9
Dated events: 1
On other graphs: 0
Observed: Dec 20, 2006 to Sep 15, 2026

Across DFX

This entity has not been resolved onto another DFX graph by a shared identifier. A name match elsewhere would be a candidate, never an identity, and none is recorded.

Facts

fact = as filed or announced; derived = computed by DFX; estimate = a band, never a point

Current firm: FOURSTAR WEALTH ADVISORS, LLC
Current firm class: independent wealth managerderived
Book size: not publicno per-advisor AUM is published by the SEC, FINRA or IAPD, and DFX estimates none
Industry start: Dec 19, 2006earliest registration or exam on IAPD
Years in industry: 19derivedfrom the industry start date
Years at current firm: 5derivedfrom the current registration's begin date
Prior firms: 8
Current registrations: 1
Registered states: 2
Exams: S66
First exam: Dec 19, 2006
First registration: Dec 20, 2006
Dual registered: yes, broker-dealer
IAPD individual key: 1322744

Registration history

registration spans on IAPD; the basis says whether the span is a current registration or a prior employment record

Firm	Class	Began	Ended	Current	Branch	Basis
FOURSTAR WEALTH ADVISORS, LLC	Independent wealth	Dec 16, 2020	n/a	yes	CHICAGO, IL\|FLOSSMOOR, IL	Current employment
REALTA INVESTMENT ADVISORS, INC	Bd affiliated wealth	Sep 16, 2020	Apr 28, 2025	no	WILMINGTON, DE	Previous registration
SANCTUARY ADVISORS, LLC	Bd affiliated wealth	Aug 11, 2015	Sep 2, 2020	no	CHICAGO, IL	Previous registration
DAVID A. NOYES & COMPANY	Former SEC adviser	Aug 15, 2014	Aug 11, 2015	no	MIAMI, FL\|CHICAGO, IL	Previous registration
KENILWORTH ASSET MANAGEMENT, LLC	Former SEC adviser	Jul 27, 2010	Nov 21, 2014	no	CHICAGO, IL	Previous registration
NFSG CORPORATION	Bd affiliated wealth	Jul 6, 2010	Jul 28, 2010	no	CHICAGO, IL\|BOCA RATON, FL	Previous registration
CHICAGO INVESTMENT GROUP ADVISORS, LLC	n/a	Jun 18, 2009	Jul 19, 2010	no	CHICAGO, IL	Previous registration
CHICAGO INVESTMENT GROUP, LLC	n/a	May 18, 2009	Sep 4, 2009	no	CHICAGO, IL	Previous registration
UBS FINANCIAL SERVICES INC.	Wirehouse	Dec 20, 2006	May 13, 2009	no	CHICAGO, IL	Previous registration

Moves

a move is two registration dates; a bulk corporate re-registration is typed BULK_TRANSFER and is not a move

From	To	Left	Joined	Gap, days	Kind	Move type
REALTA INVESTMENT ADVISORS, INC	FOURSTAR WEALTH ADVISORS, LLC	Apr 28, 2025	Dec 16, 2020	-1,594	Firm change after gap	Ibd to RIA
SANCTUARY ADVISORS, LLC	REALTA INVESTMENT ADVISORS, INC	Sep 2, 2020	Sep 16, 2020	14	Firm change	Ibd to ibd
DAVID A. NOYES & COMPANY	SANCTUARY ADVISORS, LLC	Aug 11, 2015	Aug 11, 2015	0	Firm change	Other
KENILWORTH ASSET MANAGEMENT, LLC	DAVID A. NOYES & COMPANY	Nov 21, 2014	Aug 15, 2014	-98	Firm change after gap	Other
NFSG CORPORATION	KENILWORTH ASSET MANAGEMENT, LLC	Jul 28, 2010	Jul 27, 2010	-1	Firm change	Other
CHICAGO INVESTMENT GROUP ADVISORS, LLC	NFSG CORPORATION	Jul 19, 2010	Jul 6, 2010	-13	Firm change	Other
CHICAGO INVESTMENT GROUP, LLC	CHICAGO INVESTMENT GROUP ADVISORS, LLC	Sep 4, 2009	Jun 18, 2009	-78	Firm change after gap	Other
UBS FINANCIAL SERVICES INC.	CHICAGO INVESTMENT GROUP, LLC	May 13, 2009	May 18, 2009	5	Firm change	Other

Team moves

moves this advisor made together with colleagues (two or more registrations ending and beginning together)

Team	Left	Joined	From	Kind
205:226606:IL:2015-08-11	Aug 11, 2015	Aug 11, 2015	CHICAGO, IL	Firm change

Relationships

Registered with (9)

→ FOURSTAR WEALTH ADVISORS, LLCRegistered adviserregistration: current employment
Dec 16, 2020 to presentfactForm ADV
→ REALTA INVESTMENT ADVISORS, INCRegistered adviserregistration: previous registration
Sep 16, 2020 to Apr 28, 2025factForm ADV
→ SANCTUARY ADVISORS, LLCRegistered adviserregistration: previous registration
Aug 11, 2015 to Sep 2, 2020factForm ADV
→ DAVID A. NOYES & COMPANYRegistered adviserregistration: previous registration
Aug 15, 2014 to Aug 11, 2015factForm ADV
→ KENILWORTH ASSET MANAGEMENT, LLCRegistered adviserregistration: previous registration
Jul 27, 2010 to Nov 21, 2014factForm ADV
→ NFSG CORPORATIONRegistered adviserregistration: previous registration
Jul 6, 2010 to Jul 28, 2010factForm ADV
→ CHICAGO INVESTMENT GROUP ADVISORS, LLCRegistered adviserregistration: previous registration
Jun 18, 2009 to Jul 19, 2010factForm ADV
→ CHICAGO INVESTMENT GROUP, LLCRegistered adviserregistration: previous registration
May 18, 2009 to Sep 4, 2009factForm ADV
→ UBS FINANCIAL SERVICES INC.Registered adviserregistration: previous registration
Dec 20, 2006 to May 13, 2009factForm ADV

Dated events

Occurred
Apr 28, 2025
Advisor changed firm
Mark William Karstrom left Realta Investment Advisors, Inc for Fourstar Wealth Advisors, Llc (registered 2020-12-16)
Form ADVobserved 6 days ago